linux-kernel - Re: Sensor event related attribute naming.

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Message-ID: <20101112173227.GB1224@core.coreip.homeip.net>
Date:	Fri, 12 Nov 2010 09:32:28 -0800
From:	Dmitry Torokhov <dmitry.torokhov@...il.com>
To:	Hemanth V <hemanthv@...com>
Cc:	Jonathan Cameron <jic23@....ac.uk>,
	LKML <linux-kernel@...r.kernel.org>, linux-iio@...r.kernel.org,
	linux-input@...r.kernel.org,
	Manuel Stahl <manuel.stahl@....fraunhofer.de>,
	Jean Delvare <khali@...ux-fr.org>, Greg KH <greg@...ah.com>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Andrew Morton <akpm@...ux-foundation.org>, drivers@...log.com,
	achew@...dia.com, Donggeun Kim <dg77.kim@...sung.com>
Subject: Re: Sensor event related attribute naming.

On Fri, Nov 12, 2010 at 03:34:36PM +0530, Hemanth V wrote:
> ----- Original Message ----- From: "Hemanth V" <hemanthv@...com>
> To: "Jonathan Cameron" <jic23@....ac.uk>; "Dmitry Torokhov" <dtor@...l.ru>
> 
> 
> >----- Original Message ----- From: "Jonathan Cameron"
> ><jic23@....ac.uk>
> >To: "Jonathan Cameron" <jic23@....ac.uk>
> >Sent: Thursday, September 30, 2010 3:36 PM
> >Subject: Re: Sensor event related attribute naming.
> >
> >
> >>Given the lack of further comment, I went ahead and implemented
> >>the above naming
> >>scheme for IIO. As the above discussion with Hemanth shows,
> >>there are some corner cases
> >>that will need futher thought in the future.
> >>
> >
> >Jonathan, haven't seen many comments on this. Do u think the reason
> >might be that these interfaces are hidden behind a HAL layer like
> >in android and
> >might not be a burning issue for many people.
> >
> 
> Dmitry, could you let us know your thoughts on this too.
> Would using a HAL layer be better compared to creating a standard
> sysfs interface, as it seems to be the popular approach.
> 

Hemanth,

I do not really see the difference between sysfs interface and HAL
interface. They both abstract hardware details and bring them to common
denominator. If you guys can agree on HAL interface I trust sysfs should
be possible too ;)

BTW, the reason I do not comment on sysfs accelerometer infrastructure
is because it is not topic I am vested in, my time budget barely covers
pure input matters. So as long as there is something that is common and
shared between drivers I would be good with it; you guys need to decide
on details, please.

Thanks.

-- 
Dmitry
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